Double-acting metal-planer



c. A. SNIDER.

DOUBLE ACTING METAL PLANER.

'APPLICATLON FILED nqv. a. 1918.

1,340,256.. Patented f 18,1920.

SHEET1-' attain;

CLA. SNIDE. DOUBLE ACTING METAL APPLICATION FILED NOV. 1-91 I menial CHARLES A. SNIDER, OF ATLANTA, GEORGIA.

DOUBLE-ACTING Application filed. November To all whom it may concern:

Be 1t known that I, {,HARLns A. SNIDER,

a citizen of the United States, residing at.

useful Improvements in Double-Acting l'letal-Planers, of which the following is a specification.

This invention relates to the class of metal working machinery, and more particularly to metal planers.

The primary object of the invention is to provide a new construction of metal planer having a double acting effect upon the metal, so as to plane the same in moving in opposite directions, thereby reducing the time required to complete the work and using the power in both directions with efiiciency and economy in the matter of maintenance and cost of production.

A further object of the invention is to provide an improved iron planer having tool holding devices capable of adjustment to give the required action upon the metal, the device being also arranged to operate vertically as well as horizontally upon the \Yilli'k held upon the movable bed plate of the machine, all tending toward the chiciency of the device.

lVith the above and other objects in View, the invention comprises the various novel features of construction and arrangement of paits which will be more fully described in the following specification and then finally embodied in the clauses of the claim which are appended hereto and which form an essential part of this specification.

Reference is had to the accompanying drawings forming a part of this application, in which like reference characters indicate the corresponding parts throughout the sev- Specification of Letters Patent.

lvlETAL-PLANER.

Patented May 18, 1920.

8, 1918. Serial N0. 261,663.

which is slidably supported a platen or bed 2 designed to carry the work in the usual manner through the medium of clamping grooves 3, depending guides 4 being arranged on the under side of the platen and slidably arranged in corresponding ways 5 formed in adjacent portions of the base 1. The base 1 is formed with a longitudinal channel or way 6 receiving a feed screw or worm shaft 7, which as will be noted has its opposite ends journaled in suitable hearings in the end portions of the base, one end of said shaft extending from the base through i a bearing pillar 8 into engagement with a motor or like power element 9, said motor being capable of reversing, for a purpose hereinafter apparent. If desired, pulleys 10 can be also mounted on the extended portion of the feed screw or worm shaft 7 and engaged by belts 11 and 12, the belt 12 being crossed upon itself, so that by alternately establishing a driving connection between the belts 11 and 12 and a shaft (not shown) constantly driven in one direction, the direction of rotation of the shaft 7 is periodically reversed. If desired, the motor 9 may of course be provided with an automatic control switch whereby reversing of the same will be effected as the platen 2 reaches the end of its travel, thus serving to return the platen or in other words, reciprocating the same, such meansbeing common in the art as now developed.

Screw or worm bearings 13' are secured to the under side of the platen 2 and as shown in the Fig. 2 engage with the feed screw 7 in order that motion can be transmitted to said platen.

Positioned adjacent one side of the machine base 1 are uprights 14, the lower ends of which, as will be noted, are engaged with a suitable foot or stand 15. These uprights 14 are slidably connected to the depending legs of the horizontally disposed tool holder carrying arms 16 and are capable of being adjusted vertically with relation to the uprights by means of vertically disposed screw threaded shafts 17 said shafts being intergeared at their upper ends with a horizontally disposed driven shaft 18 carrying pulleys 19 on one extremity thereof, which pulleys in turn receive power transmitting belts 20 and 21 thereabout, the belt 21 being crossed to permit transmission of reverse rotation to the drive shaft 18, The vertical gaged with the adjacent sides of the hori zontally disposed arms 16 and se ye to slidably support conventional tool holders 25, the tools 26, of course, being capable of movement along the arms and also oft angular movement by reason of their connection with the holders. Feed screw shafts 27 are mounted in hearings on the arms 16 and have certain of their ends extended beyond the arms and squared as at 28 in order that a crank handle 29 can be engaged therewith for an obvious purpose. To effect adjustment of the tool holders augularly with relation to the screw feed shafts 27, the ordinary forms of hand screws 30 are provided the holders. Vertically disposed dove-tailed guides are arranged on the adj acent sides of the uprights ll as indicated by the numeral 31 and slidably receive tool holders 32 corresponding to the tool holders 25, sliding movement of these tool holders 32 with relation to their respective uprights being efi'ected by means of screw threaded shafts 33 mounted in bearings between the opposite sides of the several guides and engaged with bearings carried on adjacent portions of the holders; rotation of the shafts being effected by handles 3d connected thereto.

In Fig. i I have shown a slightly modified form of tool holder mounting, this particular form being especially designed. for use in heavy duty machines and including a substantially dove-tailed shaped longitudinal guide 35 mounted on each of the arms 16. adapted to slidably receive the bracket portion 36 of the tool holders, said bracket portion carrying screw threaded bearing brackets 37 for receiving the feed screws 38 whereby to permit sliding movement to be transmitted to the various tool holders conranged on the l gs 22, the same being so adjusted as to eii'ect proper engagement between the tools and the work arranged on the reciprocating platen 2, to which motion is transmitted by means of the motor 9 or the bolts 11 and 12. Said tools will of course act upon the work upon movement of the platen so as to accomplish the task in less time than is now required by similar machines prevalent in the art, this being due to the fact that the tools remain in engagement with the work on the platen during both movements thereof, that is, during the back and forth or reciprocatory motion of the platen. The arms 16 can be adjusted vertically with relation to the sliding platen 2 and in consequence, worir of different depths or sizes can be arranged thereon and eiiectually engaged by the tools 26.- By reason of the adjustment of the tool holders, in the manner specified, the tools can be. brought into play at each end of the stroke so to have one set of tools operating while the others are inoperative, while all of the tools are capable of leing thrown out of operation or to neutral positions at any oesired time, when reciprocation of the bed or platen is discontinued. Further, the con trol of the machine is always convenient and accessible to the machinist or operator.

ldanifestly, the construction shown is capable of considerable modification and such modification as is within the scope of my claims, I consider within the spirit of my invention.

Having thus described my invention, what I claim new and desire to secure by Letters Patent, is: i

1. In a metal planer, a base, a platen slidably mounted thereon, uprights arranged at one side of the base, vertica ly adjustable tool holder carrying arms, depending leg portions carried by said arms slidablj mounted upon said uprights, a plura 'ty of cutting elements arranged upon the arms in opposed groups, means for effecting independent vertical and horizontal adjustment of the respective tool holders with respect to the arms, and means for simultaneously adjusting the arms vertically.

2. In a metal planer, a base, a platen slid ably mounted thereon, n1 "ights arranged at one side of the base, vertically adjustable tool holder carrying arms slidably mounted upon the uprights, means for effecting verti cal adjustment of the arms with relation to uprights, a plurality of independently adjustable tool holders arranged upon the arms in opposed groups, and supplementary vertically adjustable tool holders arranged upon the uprights and mounted independently of the arms.

In testimony whereof I affix my signature hereto. v

CHAR-LES A. SNIDER. 

